Java UTF8 utf8StringLength(final CharSequence sequence)

Description

utf String Length

License

Apache License

Declaration

public static int utf8StringLength(final CharSequence sequence) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

public class Main {
    public static int utf8StringLength(final CharSequence sequence) {
        int count = 0;
        for (int i = 0, len = sequence.length(); i < len; i++) {
            char ch = sequence.charAt(i);
            if (ch <= 0x7F) {
                count++;//  w  w  w.ja  v a 2  s . c o  m
            } else if (ch <= 0x7FF) {
                count += 2;
            } else if (Character.isHighSurrogate(ch)) {
                count += 4;
                ++i;
            } else {
                count += 3;
            }
        }
        return count;
    }
}

Related

1. utf8Len(byte b)
2. utf8Length(byte[] buffer, int str, int len)
3. utf8Replace(String str)
4. utf8SafeCEscape(String src)
5. utf8String(String... strs)
6. utf8StringSizeInBytes(String s)
7. utf8StringToByteArray(String dataString)
8. utf8StringToBytes(String string)
9. utf8ToString(byte[] data)